Rock-crusher.



T. L. SMITH.

BOOK OBUSHER.

APBLIGATION FILED 00129, 1910.

1,050,398. Patented Jan.14,1913.

IN VEN TOR WITNESSES: I 'LW. Wm 7% W V ATTORNEY THQMAS Ii. SMITH, F MILWAUKEE, WISCIONSIISI.

RocK-onUsnnn.

Specification of Letters Patent.

Patented Jerald, 1913.,

Application filed Qctober 29, 1910. Serial No. 589,778.

To all whom it m ay concern Be it known that I, THOMAS L. SMITH, a

citizen of the United States, residing in'Mil- \vaukee, in the county of Milwaukee and State of lVisconsin, have invented a new and useful Rock-Crusher, of which the following is a specification.-

My invention'relates to improvements in rock crushers of the gyratory type; and the objects of my invention are to provide a compact machine in which the oscillating or gyrating means for the crusher head is inside of said head, but in which the head is given a movement of different amplitude at the top from that given at the bottom thereof, to make the machine dust-proof as to its wearing surfaces and to provide a circulating oiling means for the gyrating and the driving means and an efiicient head adjusting de- "ice. I attain these objects by the mechanism illustrated in the accompanying drawing and subsequently specified in the claims.

Figure l of the drawing shows a central vertical section, through the crusher and Figs. 2 and 3 show details.

A is the frame of the crusher which is provided with a strong spider a at its low est part. This frame also carries the concaves a and is provided with flanges a for positioning the machine on the foundation sills B.

C is the crown piece rigidly bolted to the frame A. The crusher shaft D is stationary and rigidly supported in the spider a and crown piece C. The center line of the shaft D and of the crusher frame is d d.

The crusher head E is vertically adjustable on a sleeve F which is termed a head liner, and both crusher head and head liner are given a gyratory or oscillating movement by an eccentric sleeve G which is rotated on the stationary shaft D as an axis by means of the bevel gear 9 andbevel pinion 9'. The bore of the eccentric sleeve G has the center line (Z d, whereas the outside of the eccentric is turned on the center line (Z d which makes an angle with the line (Z cl, both lines intersecting in the point (i. As the lower end of the eccentric has more eccentricity than its upper end, and as, if the eccentric were continued to the point. d, its eccentricitywould become m'l, any point in the head liner or crushing head, when held from turning while the eccentric is being rotated, will move in the surface of a sphere which has the point (Z for a center and the distance from (Z to the point in question for a radius. Thus, any point in the flangef atthe bottom of the head liner will have a wahbling movement in a spherical surface having (8 f for a radius and a point in the collar 7' at the upper end of the head liner will have a movement in the surface of a sphere having d c for a radius. The flan and the plate a which covers the well for the gears g and g, are therefore made with a partial spherical bearing between them. Likewise the collar f at the upper end of the head liner F and the lower surface of the hub of the crown piece C are made with a partial spherical bearing. The collar f and the flange f are spaced apart by the distance'collar e, the crusher head E and the adjusting jack screws 6 which latter should be so adjusted that a little oil will work out of these spherical bearings.

H is an oil reservoir, from which the oil is taken by the rotary or other form of pump it and delivered through the pipe h to the top of the eccentric G. From thence it gravitates inside and outside of the eccentric sleeve to the well in which the gears are placed and back to the reservoir through the pipe h. As all the spaces between all live bearing surfaces in the crusher form part of or are connected with this oilchannel, all the working surfaces are lubricated.

In order to avoid the possibility of the shaft D sticking fast in the crown piece 0, the upper end of the shaft is made tapered at d and a taper thimble w made in halves is forced into the annular space between 03 and the crown piece by means of a stud bolt in the shaft anda nut and washer. The same stud boit engages the cap p to hold the same in place.

After the distance between. the curved flanges f and f has been properly adjusted by means of the jack screw 6', this, screw is retained in its adjusted position by the set screw 8 which is tapped in the collar which collar has one of its sides conforms to the curve of the head liner F.

What I claim is:

1. A rock crusher comprising a frame supporting an annular crushing member, a stationary shaft firmly supported at both ends in the frame, a movablecrusher head surrounding said shaft, an eccentric sleeve on said shaft and in said head, having greater eccentricity at its lower than at its upper end and spherical bearings between the ends o'i said head and the adjacent parts of said Frame.

ft rocl; crusher tOl1T }1lS11Ttg one movable and one annular stationary crushing memher, a stalionary shaft through the annular member supported at each end'in the trance, an eccentric sleeve in, the movable crusher member and on said stationary shaft, said sleeve heingtlorined with the center lines of its inside and outside surfaces intersecting, said sleeve carrying a part having a spherieal hearing against the lTttIllG at each end, said hearings having the center line intersection for a center.

it r. crusher conu'n-ising an annular crusher rnei'nber and a niovalile crusher head therein, stati nary shaft, a rotatahle eccentric sleeve on eaid shaft, having greater eccentricity at one end than the other, a sieei'e in the crusher head and fitting said eccentric having a partial spherical hearing with a part of the frame.

t. in a rock crusher, the conihination of a frame having a crown piece and a spider, a stationary shaft connecting the same, a con-- cave crusher member in the frame and a evratii'ip crusher head around said shaft, an eccentric sleeve within said head hnd on said shaft, spherical bearing; surfaces on said spider and said crown piece, and corresponding spherical surfaces connected with said gyratinr; head and hearing against said crown and spider.

ln rock crusher, a frame and spider, a removable erovvn piece, a stationary shait't connecting the same, an eccentric sleeve on said shaft, a crusher head around said sleeve, the center lines at the shaft:- and of the eclcentric intersecting in a point almve the crusher, spherical hearings on said spider and CI'OWH piece and eorrespondiingg; hearing-t on said head, both bearings having said iii-- t tiersection for a center, and means for ad ljusting the hearings on the head to hear against those on the crown piece and spider.

8. ln a root: crusher, a frame and spider. a removable croivn piece, a stationary shalt. connecting, the same, an eccentric sleeve on said shaft having its center line and that of the shaft intersecting in a point crusher. a crusher head around said ec entric, spherical hearings on said crown piece and spider having; said intersection tor a center, a sleeve fitting Within the head and on said eccentric, a spherical hearing on the end of said sleeve hearingagainst said spider, a collar carried by the upper end of said head having; -a sphericalhearing to [it against said spider, and means for adjust ing said head and collar relatively to said sleeve and its hearing against the spider.

7. in a rock crusher, an annular frame having an integral spider at the bottom and a removable crown piece at the top. a stationary shaft secured in a central hearing, in the spider, the upper end of said shaft in the crown piece being; tapered, a split collar tapered on the insideto fit the shaft, and cylindrical on the outside to lit the crown piece and means "for clamping the taper (oh lair in place.

HONAS ahove the i ti l 

